Ebrahim Taherzadeh and  Helmi Z. M. Shafri and  Kaveh Shahi,  Roof Material Detection Based on Object-Based Approach Using WorldView-2 Satellite Imagery.   journal   = {International Journal of Environmental and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2014, vol. 94(10). 1826 - 1829
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/9999539.